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Emergency department utilization in patients with hypertrophic cardiomyopathy: a nationwide population-based study
You-Jung Choi1, Bongseong Kim2, Hyun-Jung Lee1
1Cardiac Diagnostic Test Unit, Section of Cardiovascular Imaging, Division of Cardiology, Cardiovascular Center, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
Insights
Hypertrophic cardiomyopathy (HCM) patients frequently visit emergency departments (EDs), primarily for cardiovascular issues. These ED visits are linked to increased hospitalizations and mortality within 90 days.
Area of Science:
- Cardiology
- Public Health
- Health Services Research
Background:
- Hypertrophic cardiomyopathy (HCM) poses a growing healthcare challenge.
- Limited data exists on emergency department (ED) utilization patterns for HCM patients.
Purpose of the Study:
- To investigate the characteristics and outcomes of emergency department (ED) utilization among a nationwide cohort of hypertrophic cardiomyopathy (HCM) patients.
- To identify the primary reasons for ED visits and associated clinical outcomes.
Main Methods:
- A nationwide population-based study utilizing data from the National Health Insurance Service database (2015-2016).
- Inclusion of 14,542 patients diagnosed with hypertrophic cardiomyopathy (HCM).
- Analysis of ED utilization, primary discharge diagnoses, hospitalizations, and all-cause mortality within 90 days post-ED visit.
Main Results:
- 22.1% of HCM patients utilized ED services within one year.
- Cardiovascular diseases were the most frequent reason for ED visits (41.5%).
- HCM patients visiting the ED experienced higher rates of hospitalization (37.2%) and 90-day all-cause mortality (7.2%).
- ED visits for cardiovascular disease significantly increased the risk of 90-day all-cause mortality (aOR, 2.72).
Conclusions:
- Emergency department utilization is substantial among hypertrophic cardiomyopathy patients.
- Cardiovascular conditions are the leading cause of ED visits in this population.
- ED visits are associated with significant morbidity and mortality, highlighting the need for improved management strategies and healthcare policies for HCM.
Abstract:
Despite the increasing burden of hypertrophic cardiomyopathy (HCM) on healthcare resources, data on emergency department (ED) utilization in HCM are lacking. This nationwide population-based study extracted 14,542 HCM patients from the National Health Insurance Service database between 2015-2016, and investigated their ED utilization during a one-year period. The reason for ED utilization was defined as the primary diagnosis upon discharge from EDs. The clinical outcome was defined as hospitalization or all-cause mortality within 90 days after the ED visits. A total of 3209 (22.1%) HCM patients visited EDs within a one-year period (mean age, 66.8 ± 13.8 years; male, 57.4%). The majority (71.1%) of HCM patients who visited the EDs were aged ≥ 60 years. The ED utilization rate was higher in women than in men (26.3% versus 19.7%, P < 0.001). Cardiovascular diseases were the most common reason for ED visits (n = 1333, 41.5%). Among HCM patients who visited EDs, 1195 (37.2%) were hospitalized, and 231 (7.2%) died within 90 days. ED visits for cardiovascular disease was associated with a higher 90-day all-cause mortality (adjusted odds ratio, 2.72; 95% confidence interval 1.79-4.12). These findings would serve as a basis for future research to establish medical policies on ED utilization in HCM.
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